Blind-fastener.



No; 632,571. Patented Sept. 5, I899. E. HUGHES.

BLIND FASTENEB.

(Application filed June 5, 1899.) (No Model.)

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EDlVARD HUGHES, OF NEW BEDFORD, MASSACHUSETTS.

BLlND-FASTENER.

SPECIFICATION forming part of Letters Patent No. 632,571, dated September 5, 1899.

Application filed June 5, 1899. Serial No. 719,423. (No model.)

To all whom it may concern:

Be it known that I, EDWARD HUGHES, of New Bedford, in the county of Bristol and State of Massachusetts, have invented a new and Improved Blind-Fastener, of which the following is a full, clear, and exact description.

The object of the invention is to so construct a blind-fastener adapted for attachment to a building that the latch carried by the shutter will quickly, automatically, and securely effect a locking engagement therewith.

Another object of the invention is to so construct the improved fastener that it will antomatically exert tension between itself and the blind when said blind is to be locked to a wall, thus preventing accidental closure of the blind.

Another object of the invention is to provide the blind-fastener with more than one keeper for the blind-latch, thus enabling said fastener to be used even should one keeper become broken, since the remaining keeper may be brought into the path of the latch.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar characters of reference indicate corresponding parts in both figures.

Figure 1 is a partial elevation of the outer vertical edge of a portion of a blind with the latch applied and a vertical longitudinal section through the fastener and a portion of the wall to which the fastener is attached, the latch of the blind being shown in lockingengagement with the fastener; and Fig. 2 is a perspective view of the fastener.

The fastener consists of a cylinder 10, open at its outer end and closed at its inner end, said inner end being provided with a screw 11, adapted to enter the outer face of the building A, and the said cylinder 10 is provided with two keepers 12 and 12, which keepers are in the form of bars and extend in opposite di rections from the cylinder, one upward and the other downward. The two keepers are out of vertical alinement with each other, one keeper being at the right of the cylinder and the other at the left of the same. A piston 13 is held to slide in the cylinder 10, and this piston is guided in its movement by a pin 14:, secured to the cylinder near its open end, which pin passes through a longitudinal slot 15, made in the piston, and said piston is provided with a head 16 at its outer end, which head is usually rounded, as shown in Fig. 1. A spring 17 is located within the cylinder 10, having bearing against the bottom or rear wall of the cylinder and against the inner end of the piston 13. This spring normally holds the headed end of the piston 13 some distance out from the cylinder 10, as shown in Fig. 2.

The blind B is provided with the usual gravity-latch O, the latch-head 17 whereof is adapted for engagement with the lower keeper 12 of the fastener, being normally in ahorizontal position, and said latch-head 17 has its contacting surface more or less beveled or rounded off, as is usual. The latch O is also provided with a handle 18 at the opposite side of the shutter, together with a latchhead 19, adapted for lockin g engagement with a suitable keeper located on the window-sill for the purpose of locking the blind in a closed position.

In operation when the shutter is opened the outer face of the shutter engages with the head of the piston 13, and said piston is forced inward, permitting the larger latchhead 17 a to turn as it engages with the keeper 12 and reach a point at the rear of the said keeper, at which time said latch-head 17 rises to its normal horizontal position and is held in locking engagement with the keeper by the tension of the spring 17, communicated to the piston 13, and the bearing of the piston against the shutter. In the event that one of the keepers 12 or 12 should become broken it is only necessary to turn the cylinder 10 so as to bring the other keeper from an upper to a lower or from a lower to an up per position, as the case may be, in the path of the latch-head 17 of the latch O.

Among the advantages of my improved construction over others of its kind it will be noticed that my improvement firmly secures the blind, and in the event the blind should sag the fastener will not become entangled with adjacent objects, and the fastener may properly ride up to locking engagement with its keeper. Fnrther1nore,und er my improved construction the blind-fastener cannot Work loose from its keeper.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- A blind-fastener, consisting of a cylinder having an open outer end and provided at its inner end with means for attachment to a fixed support, said cylinder being provided with oppositely-extending keeper-bars, said bars being out of Vertical alinement with each other, a piston held to slide in said cylinder, terminating at its outer end in a head and provided in its body with a longitudinal slot, a guide-pin passed through said slot of the piston, and secured to said cylinder, and a spring located Within the cylinder and having bearing against its inner closed end and the inner end of the said piston, all being adapted for operation, in the manner hereinbefore specified.

EDWARD HUGHES; Witnesses:

ALFRED W. TURNER, ISAIAH. O. DADE. 

